Home / 86,920,128,998.10-130,380,193,497.15-84,471,248,870.10

Finding the Fourth Proportional to 86,920,128,998.10, 130,380,193,497.15 and 84,471,248,870.10

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Solution

The fourth proportional to 86,920,128,998.10, 130,380,193,497.15 and 84,471,248,870.10 is: 126,706,873,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,128,998.10 : 130,380,193,497.15 = 84,471,248,870.10 : x
  2. Step 2: Convert to fraction form
    86,920,128,998.10/130,380,193,497.15 = 84,471,248,870.10/x
  3. Step 3: Cross multiply
    86,920,128,998.10x = 130,380,193,497.15 × 84,471,248,870.10
  4. Step 4: Simplify right side
    86,920,128,998.10x = 11,013,377,772,629,551,742,976
  5. Step 5: Solve for x
    x = 11,013,377,772,629,551,742,976/86,920,128,998.10
  6. Step 6: Final answer
    x = 126,706,873,305.15

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.